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Volume 42, issue 4
Arch. Anim. Breed., 42, 321–334, 1999
https://doi.org/10.5194/aab-42-321-1999
© Author(s) 1999. This work is distributed under
the Creative Commons Attribution 3.0 License.
Arch. Anim. Breed., 42, 321–334, 1999
https://doi.org/10.5194/aab-42-321-1999
© Author(s) 1999. This work is distributed under
the Creative Commons Attribution 3.0 License.

  10 Oct 1999

10 Oct 1999

Proteolytische Aktivitäten der lysosomalen Enzyme bei Milchrindern* – 1. Mitteilung: Variation der lysosomalen Enzyme bei Milchkühen

L. Panicke1, M. Schmidt2, T. Król2, and R. Staufenbiel3 L. Panicke et al.
  • 1Forschungsinstitut für die Biologie landwirtschaftlicher Nutztiere (FBN), Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
  • 2Biologisches Institut der Pädagogischen Universität Kielce, Polen,, Zeromskiego 5, 25-369 Kielce, Polen
  • 3Freie Universität Berlin, Klinik für Klauentiere, Königsweg 65, 14163 Berlin, Germany

Abstract. Titel of the paper: Proteolytic activities of lysosomal enzymes in dairy cattle. I. Variation of lysosomal enzymes in dairy cattle
There are no references to be found in the literature dealing with genetic aspects of lysosomal enzyme activities m blood of dairy cows, The used amino peptidases are connected to the proteolysis. 1011 investigated cows showed Variation coefficients of ≈50%, higher than in milk traits In simultaneous samples it reduces to 20–30% similar to daily milk samples The heritability coefficients h2 = 0,10–0,20 is approximately between fertility traits and milk traits The investigation of lysosomal enzyme activities might be limited to plasma. No additional information could be gained using the leukocytes. Changing activities of enzymes in plasma are aqually directed to the milk performance. It may be concluded that the trait spectrum might be reduced to DP-IV, AGR, ALA, AGLD and EL as well especially to protein yield of milk.

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